One of the most common misinterpretations of Stoicism is the notion that Stoics believe all external things are totally indifferent. That’s arguably closer to the philosophy of the Cynics, or possibly of the Skeptics or even the renegade Stoic, Aristo of Chios, as we’ll see. For these philosophers, everything except virtue and vice is classed as indifferent. That includes things like health, wealth, property, reputation, and so on, which philosophers called “externals” because they’re external to the mind, or more specifically external to our volition or faculty of moral choice. As Epictetus put it, only our actions are good or evil, and everything else is indifferent.
However, when Zeno founded the Stoic school he distinguished it from earlier philosophies precisely by asserting that although externals were, in one sense, indifferent, in another sense they were not. For Stoics, external things are not good or bad in the strongest sense. They don’t make our souls better or worse, or affect our fulfilment (eudaimonia) in life. What matters ultimately is the use we make of them, good or bad, virtuous or vicious. However, Zeno said that they do have another sort of value (axia), which allows us to choose between them. Indeed, it’s perfectly natural and rational to prefer some externals over others. We’re quite right to prefer life over death, health over sickness, and friends over enemies, generally speaking, as long as we do so “lightly”, to borrow a phrase from Epictetus. Put simply, we shouldn’t place so much value on these external things that we become upset if we get what we don’t want, or don’t get what we do want. The Stoics talk about “preferring” or “dispreferring” externals, as opposed to strongly desiring them. We choose between them, without becoming attached to them, or strongly averse to them.
More than this, however, Zeno and the Stoics argued that wisdom, and the other virtues, consist precisely in our ability to distinguish rationally between the value of different external things. Ironically, someone who discounts all externals as totally indifferent, or equally indifferent, would therefore be foolish according to the Stoics. They would lack prudence. They’d also lack the ability to exercise justice by knowing what it’s fair and benevolent to give other people or to do for them. They’d also lack the virtues of courage and moderation because they wouldn’t be able to distinguish rationally between things worth enduring or renouncing and things not.
In De Finibus, Cicero portrays a conversation between himself and Cato, representing the “complete Stoic”. He begins by tackling precisely this misconception of Stoicism. After Cato asserts the Stoic principle that virtue (moral worth) is the only true good, Cicero replies:
“What you have said so far, Cato,” I answered, “might equally well be said by a follower of Pyrrho or of Aristo. They, as you are aware, think as you do, that this Moral Worth you speak of is not merely the chief but the only Good […] Do you then,” I asked, “commend these philosophers, and think that we ought to adopt this view of theirs?” “I certainly would not have you adopt their view,” he said; “for it is of the essence of virtue to exercise choice among the things in accordance with nature; so that philosophers who make all things absolutely equal, rendering them indistinguishable either as better or worse, and leaving no room for selection among them, have abolished virtue itself.” (De Finibus)
Notice that he says very clearly that virtue itself is effectively destroyed if we treat all externals as equal. Virtue, in other words, consists precisely in our ability to apply reason by weighing-up the value of different external things. Cato returns to this point later:
“Next follows an exposition of the difference between things; for if we maintained that all things were absolutely indifferent, the whole of life would be thrown into confusion, as it is by Aristo, and no function or task could be found for wisdom, since there would be absolutely no distinction between the things that pertain to the conduct of life, and no choice need be exercised among them. Accordingly after conclusively proving that morality alone is good and baseness alone evil, the Stoics went on to affirm that among those things which were of no importance for happiness or misery, there was nevertheless an element of difference, making some of them of positive and others of negative value, and others neutral. (De Finibus)
For instance, some Cynics believed it was courageous to endure self-immolation, burning themselves alive to protest. The Stoics, however, would say that if the protest is futile then this isn’t courage but rather folly. Marcus Aurelius says that although Stoics believe suicide can be a reasonable decision it’s only appropriate to prefer one’s death to life when based on sound judgement, given certain circumstances such as euthanasia in extreme old age and sickness, or self-sacrifice in warfare for the greater good. By contrast, the Christians, he says, endure death (martyrdom) out of foolish obstinacy and a desire to make a tragic spectacle of themselves (11.3).
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